Pre-market Trading and IPO Pricing

• 成果类型: Article
• 署名作者: Chang, Chun; Chiang, Yao-Min; Qian, Yiming; Ritter, Jay R.
• 署名单位: Shanghai Jiao Tong University; National Taiwan University; University of Iowa; State University System of Florida; University of Florida
• 刊物名称: REVIEW OF FINANCIAL STUDIES
• ISSN/ISSBN: 0893-9454
• DOI: 10.1093/rfs/hhw032
• 发表日期: 2017
• 页码: 835
• 关键词: initial public offerings; Sentiment; returns; book

摘要

Studying the only mandatory pre-IPO market in the world-Taiwan's Emerging Stock Market (ESM)-we document that pre-market prices are very informative about post-market prices and that informativeness increases with a stock's liquidity. The ESM price-earnings ratio shortly before an initial public offering explains about 90% of the variation in the offer price-earnings ratio. However, the average IPO underpricing level remains high, at 55%, suggesting that agency problems between underwriters and issuers can lead to excessive underpricing, even with little valuation uncertainty. Also, regulations impact the relative bargaining power of players and therefore IPO pricing.